Mechanical Engineering :: Engineering Materials
-
The acidic bessemer process is suitable for producing steel from pig iron containing large quantities of phosphorus.
-
In low carbon steels, presence of small quantities of sulphur improves
-
The aluminium alloy made by melting aluminium with 2 to 10% magnesium and 1.75% copper is called
-
Y-alloy contains
-
The steel scrap added in the charge of cupola controls the grade of cast iron produced.
-
The main alloying elements high speed steel in order of increasing proportion are
-
Which of the following metal is used in making electrical resistance wire for electric furnaces and heating elements?
-
Which of the following metal is used for nuclear energy?
Whatsapp
Facebook
|
A.
3.5 to 4.5% copper, 0.4 to 0.7% magnesium, 0.4 to 0.7% manganese and rest aluminium
|
|
B.
3.5 to 4.5% copper, 1.2 to 1.7% manganese, 1.8 to 2.3% nickel, 0.6% each of silicon, magnesium and iron, and rest aluminium
|
|
C.
4 to 4.5% magnesium, 3 to 4% copper and rest aluminium
|
|
D.
5 to 6% tin, 2 to 3% copper and rest aluminium
|